centos 开机启动java_java程序在centos7里面开机自启动

1.我们先来个简单的start,status,stop程序：

[[email protected] ~]# cat /home/tomcat/jarservice.sh

#!/bin/bash

CU_PID=/home/tomcat/cupid.pid

start()

{

echo -n "start java"

nohup java -jar /home/tomcat/exchange-1.4.jar >/dev/null 2>&1 &

new_agent_pid=$!

echo "$new_agent_pid" > $CU_PID

}

stop()

{

if [ -f /home/tomcat/cupid.pid ];then

SPID=`cat /home/tomcat/cupid.pid`

if [ "$SPID" != "" ];then

kill -9 $SPID

echo >$CU_PID

echo "stop sucess"

fi

fi

}

CheckProcessStata()

{

CPS_PID=$1

if [ "$CPS_PID" != "" ] ;then

CPS_PIDLIST=`ps -ef|grep $CPS_PID|grep -v grep|awk -F" " ‘{print $2}‘`

else

CPS_PIDLIST=`ps -ef|grep "$CPS_PNAME"|grep -v grep|awk -F" " ‘{print $2}‘`

fi

for CPS_i in `echo $CPS_PIDLIST`

do

if [ "$CPS_PID" = "" ] ;then

CPS_i1="$CPS_PID"

else

CPS_i1="$CPS_i"

fi

if [ "$CPS_i1" = "$CPS_PID" ] ;then

#kill -s 0 $CPS_i

kill -0 $CPS_i >/dev/null 2>&1

if [ $? != 0 ] ;then

echo "[`date`] MC-10500: Process $i have Dead"

kill -9 $CPS_i >/dev/null 2>&1

return 1

else

#echo "[`date`] MC-10501: Process is alive"

return 0

fi

fi

done

echo "[`date`] MC-10502: Process $CPS_i is not exists"

return 1

}

status()

{

SPID=`cat /home/tomcat/cupid.pid`

CheckProcessStata $SPID >/dev/null

if [ $? != 0 ];then

echo "unixdialup:{$SPID} Stopped ...."

else

echo "unixdialup:{$SPID} Running Normal."

fi

}

restart()

{

echo "stoping ... "

stop

echo "staring ..."

start

}

case "$1" in

start)

start

;;

stop)

stop

;;

status)

status

;;

restart)

restart

;;

*)

echo $"Usage: $0 {start|stop|restart}"

RETVAL=1

esac

exit $RETVAL

2.再写个服务文件：

[[email protected] ~]# cat /lib/systemd/system/jar.service

[Unit]

Description=java

After=network.target

[Service]

Type=forking

ExecStart=/home/tomcat/jarservice.sh start

ExecReload=/home/tomcat/jarservice.sh restart

ExecStop=/home/tomcat/jarservice.sh stop

#PrivateTmp=true

User=tomcat

[Install]

WantedBy=multi-user.target

[[email protected] ~]#

3.开机测试：成功！！！

[[email protected] ~]# systemctl status jar.service

● jar.service - java

Loaded: loaded (/usr/lib/systemd/system/jar.service; enabled; vendor preset: disabled)

Active: active (running) since Thu 2017-07-27 01:10:38 EDT; 36s ago

Process: 858 ExecStart=/home/tomcat/jarservice.sh start (code=exited, status=0/SUCCESS)

Main PID: 870 (java)

CGroup: /system.slice/jar.service

└─870 java -jar /home/tomcat/exchange-1.4.jar

原文：http://www.cnblogs.com/Jt00/p/7244330.html

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